Home / 1,533.41-2,115.85-1,455.57

Finding the Fourth Proportional to 1,533.41, 2,115.85 and 1,455.57

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Solution

The fourth proportional to 1,533.41, 2,115.85 and 1,455.57 is: 2,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.41 : 2,115.85 = 1,455.57 : x
  2. Step 2: Convert to fraction form
    1,533.41/2,115.85 = 1,455.57/x
  3. Step 3: Cross multiply
    1,533.41x = 2,115.85 × 1,455.57
  4. Step 4: Simplify right side
    1,533.41x = 3,079,762.78
  5. Step 5: Solve for x
    x = 3,079,762.78/1,533.41
  6. Step 6: Final answer
    x = 2,008.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.